Destination Preference Attribute for BGP

Fri Aug 18 21:25:18 UTC 2023

On 8/18/23 19:38, Jakob Heitz (jheitz) via NANOG wrote:

> That's true Robert.
>
> However, communities and med only work with neighbors.
>
> Communities routinely get scrubbed because they cause increased memory 
> usage and convergence time in routers.
>

Really?

We only scrub a specific string of communities that would trigger 
undesired outcomes in our network if received from customers. Otherwise, 
we pass on what we receive and just add our own bits... matches will 
still occur?

In 2023 control planes, I can't think of an obvious reason to justify 
that communities are scrubbed to save memory.

Mark.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.nanog.org/pipermail/nanog/attachments/20230818/25caa1fc/attachment.html>